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Vulnerability record · CVE-2024-9483 · published 4 October 2024

CVE-2024-9483: Avast antivirus null pointer dereference vulnerability

Avast · Antivirus

A null-pointer-dereference in the signature verification module in AVG/Avast Antivirus signature <24092400 released on 24/Sep/2024 on MacOS may allow a malformed xar file to crash the application during processing.

5.5 CVSS 3.1 Medium EPSS 0.13% · top 97.5% CWE-476 · NULL pointer dereference
5.5CVSS 3.1 base score
0.13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

A null-pointer-dereference in the signature verification module in AVG/Avast Antivirus signature <24092400 released on 24/Sep/2024 on MacOS may allow a malformed xar file to crash the application during processing.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.norton.com/sp/static/external/tools/security-advisories.html Not Applicable

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-9483), CISA KEV, FIRST EPSS (scores of 2026-10-11). This page is refreshed as NVD updates the record.